Weather forecast for 10 daysCoulee Dam, WA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 41°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphNE 48°
- Humidity: 42%
- UV index: 3
- Sunrise: 7:20 am PDT
- Sunset: 6:01 pm PDT
- details ▼
On Sunday, in Coulee Dam, sun-filled skies will remain for most of the day.
The highest temperature will be a breezy 64.4°F, while the lowest anticipated temperature is a wintry 41°F.
Tomorrow's temperature peak is set to be moderately higher than the typical October high of 56.3°F.
Sunrise will be at 7:20 am and sunset at 6:01 pm; tomorrow's daylight will last for 10h and 42min.
The highest temperature will be a breezy 64.4°F, while the lowest anticipated temperature is a wintry 41°F.
Tomorrow's temperature peak is set to be moderately higher than the typical October high of 56.3°F.
Sunrise will be at 7:20 am and sunset at 6:01 pm; tomorrow's daylight will last for 10h and 42min.
10-day overview
Daily temperatures
Warmest period: Tuesday - Wednesday 68°C.
Coldest period: Saturday - Sunday 54°C.
Coldest period: Saturday - Sunday 54°C.
Chance of precipitation
Highest chance: Sunday 25.10. 24%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 32°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphNW 325°
- Humidity: 60%
- UV index: 0
- Sunrise: 7:18 am PDT
- Sunset: 6:03 pm PDT
- details ▼
- Sunday
- Oct 18, 2026
- 64°F
- 41°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphNE 48°
- Humidity: 42%
- UV index: 3
- Sunrise: 7:20 am PDT
- Sunset: 6:01 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 63°F
- 39°F
Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphNNE 17°
- Humidity: 45%
- UV index: 1
- Sunrise: 7:21 am PDT
- Sunset: 5:59 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 39°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphNNW 342°
- Humidity: 46%
- UV index: 3
- Sunrise: 7:23 am PDT
- Sunset: 5:58 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 41°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphESE 105°
- Humidity: 49%
- UV index: 2
- Sunrise: 7:24 am PDT
- Sunset: 5:56 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 64°F
- 43°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphNW 324°
- Humidity: 57%
- UV index: 2
- Sunrise: 7:26 am PDT
- Sunset: 5:54 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 61°F
- 34°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 12mphNW 306°
- Humidity: 41%
- UV index: 2
- Sunrise: 7:27 am PDT
- Sunset: 5:52 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 54°F
- 36°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphE 83°
- Humidity: 53%
- UV index: 2
- Sunrise: 7:29 am PDT
- Sunset: 5:50 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 54°F
- 34°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 7mphNE 40°
- Humidity: 59%
- UV index: 2
- Sunrise: 7:30 am PDT
- Sunset: 5:49 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 55°F
- 36°F
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 6mphENE 62°
- Humidity: 61%
- UV index: 2
- Sunrise: 7:32 am PDT
- Sunset: 5:47 pm PDT
- details ▼
Over the next ten days, a combination of cloudy and dry and sunny weather is expected.
Rain is not forecasted in Coulee Dam in the upcoming period.
Significant changes in temperature are expected in the coming days. The temperature is expected to swing from 53.6°F up to 68°F, while the forecast minimum temperature falls between 32°F and 42.8°F.
Tuesday and Wednesday, with the highest temperature of 68°F, will be the warmest days; with a maximum temperature of 53.6°F, next Saturday and Sunday will be the coldest days.
Rain is not forecasted in Coulee Dam in the upcoming period.
Significant changes in temperature are expected in the coming days. The temperature is expected to swing from 53.6°F up to 68°F, while the forecast minimum temperature falls between 32°F and 42.8°F.
Tuesday and Wednesday, with the highest temperature of 68°F, will be the warmest days; with a maximum temperature of 53.6°F, next Saturday and Sunday will be the coldest days.
Updated: Oct 18, 2026 @ 06:58:30 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Coulee Dam, mostly clear skies and sunshine will create ideal daytime conditions.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 41°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. The lowest temperature will be in line with the average low of 41.4°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. The lowest temperature will be in line with the average low of 41.4°F.
On Sunday, in Coulee Dam, sunrise will be at 7:20 am and sunset at 6:01 pm (PDT).
In Coulee Dam, tomorrow, there will be 10h and 42min of daylight.
